JPS5713976A - Output voltage controller for polyphase inverter - Google Patents

Output voltage controller for polyphase inverter

Info

Publication number
JPS5713976A
JPS5713976A JP8699980A JP8699980A JPS5713976A JP S5713976 A JPS5713976 A JP S5713976A JP 8699980 A JP8699980 A JP 8699980A JP 8699980 A JP8699980 A JP 8699980A JP S5713976 A JPS5713976 A JP S5713976A
Authority
JP
Japan
Prior art keywords
phase
signal
voltage
unbalance
output voltages
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8699980A
Other languages
Japanese (ja)
Other versions
JPS6059831B2 (en
Inventor
Takao Kawabata
Toru Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55086999A priority Critical patent/JPS6059831B2/en
Publication of JPS5713976A publication Critical patent/JPS5713976A/en
Publication of JPS6059831B2 publication Critical patent/JPS6059831B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Abstract

PURPOSE:To dissolve unbalance of output voltages of a polyphase inverter to an unbalance load by a method wherein output currents are detected at every phase, and the IR compensations are performed respectively. CONSTITUTION:The output voltages of the inverter 1 are detected by a transformer 2 and a voltage detecting circuit 3, and the voltages between respective phases are averaged. A DC voltage proportional to this averaged value is check as a feed back signal VF to form the difference 6 between the reference voltage VR and is inputted as a control signal to a computing element 13. The computing element 13 adds this voltage control signal and a voltage compensating signal of each phase at every phase, and the result is inputted to a control circuit 9 through an A/D converter 8. A clock signal generating part 10 puts out a clock signal to close an analog switch 12U of U phase at timing to decide an igniting signal of U phase to send a feed back signal being added with an IR compensating signal proportional to a current flowing in U phase to the A/D converter 8. Accordingly, IR compensation for each phase can be performed, and unbalance of the output voltages to the unbalance load can be dissolved.
JP55086999A 1980-06-23 1980-06-23 Polyphase inverter output voltage control device Expired JPS6059831B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55086999A JPS6059831B2 (en) 1980-06-23 1980-06-23 Polyphase inverter output voltage control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55086999A JPS6059831B2 (en) 1980-06-23 1980-06-23 Polyphase inverter output voltage control device

Publications (2)

Publication Number Publication Date
JPS5713976A true JPS5713976A (en) 1982-01-25
JPS6059831B2 JPS6059831B2 (en) 1985-12-26

Family

ID=13902565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55086999A Expired JPS6059831B2 (en) 1980-06-23 1980-06-23 Polyphase inverter output voltage control device

Country Status (1)

Country Link
JP (1) JPS6059831B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6359771A (en) * 1986-08-28 1988-03-15 Shinko Electric Co Ltd Voltage control of invertor
JPH02269495A (en) * 1989-04-10 1990-11-02 Mitsubishi Electric Corp Current controller for inverter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6359771A (en) * 1986-08-28 1988-03-15 Shinko Electric Co Ltd Voltage control of invertor
JPH02269495A (en) * 1989-04-10 1990-11-02 Mitsubishi Electric Corp Current controller for inverter

Also Published As

Publication number Publication date
JPS6059831B2 (en) 1985-12-26

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